package test;

import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;

public class demo5 {
    //Callable创建线程
    public static int sum = 0;

    public static void main(String[] args) throws ExecutionException, InterruptedException {
        Callable<Integer> callable = () -> {
            for(int i = 1; i <= 100; i++){
                sum += i;
            }
            return sum;
        };
        FutureTask<Integer> futureTask = new FutureTask<>(callable);
        Thread t = new Thread(futureTask);
        t.start();
        int result = futureTask.get();
        System.out.println(result);
    }
}
